Peanut Butter and Jelly Blondies

PB&J…need I say more?! This classic combination made into a blondie treat that everyone will love! I actually hated peanut butter growing up…I know super weird, so I never ate peanut butter and jelly sandwiches. And now that I am writing this, I don’t actually know if I’ve ever had a PB&J sandwich…I should probably at least try one?!

This batter is super simple to throw together with baking ingredients you likely already have in your pantry! They’re also super versatile, and you can add any nuts, chips, or dried fruit you like!

This recipe includes THREE forms of peanut goodness: all natural peanut butter, chopped peanuts, and peanut butter chips! I used strawberry jelly in my latest version, but you can use whatever your favorite is!

I just spooned the jelly into a plastic zip bag and piped length wise stripes on top of the batter, then took a knife to swirl it into the batter. Doesn’t have to be perfect, it looks pretty any which way you swirl it!

A chewy sweet treat that everyone will love! A pan of bars is one of the easiest things to make for a pot luck! Enjoy!

Peanut Butter and Jelly Blondies

Author Laura Doerr


  • 2 sticks unsalted butter melted
  • 1 1/2 cups brown sugar packed
  • 1/4 cup peanut butter
  • 2 eggs
  • 2 tsp vanilla extract
  • 1/4 tsp kosher salt
  • 2 cups all-purpose flour
  • 1/3 cup chopped peanuts
  • 1 10 oz. pkg peanut butter chips
  • 1/2 cup strawberry jelly


  1. Preheat oven to 350 degrees, and line a 9x13 baking pan with parchment paper or lightly spray the pan with non-stick cooking spray.
  2. In a medium bowl, stir together the melted butter and brown sugar until well combined. Stir in peanut butter, eggs, and vanilla extract. Stir until well combined.
  3. Stir in flour and salt until batter is smooth and well blended, batter will be thick. Stir in the chopped peanuts and peanut butter chips. Pour batter into prepared baking pan, and spread out evenly.
  4. Add jelly into a plastic zip top sandwich bag, cut the corner of the bag, and pipe the jelly onto the batter in stripes the long way. Using a knife, swirl the jelly into the batter.
  5. Bake for 30-35 minutes or until edges are brown and toothpick comes out clean. Cool completely, and cut into squares for serving. Enjoy!

Recipe Notes

Use any kind of jam, jelly, or fruit preserve that you like! You could also add different kinds of nuts or dried fruit.

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